Major carrier networks in the US like AT&T, T-Mobile, and Verizon moved away from unsanctioned long codes and launched 10DLC as a sanctioned A2P messaging service. The sanctioned environment offers reliable A2P messaging with throughput levels suitable for large SMS campaigns and business requirements. 10DLC is only used in the US, supports both transactional and promotional messaging, and can include any US area code.

This change will also improve deliverability as 10DLC allows for higher messaging throughput than P2P (person-to-person) long code traffic.

For more information, also see:

• What is 10DLC?

• 10DLC messaging best practices to prevent being suspended or blocked.

• What are the message throughput limits for 10DLC Campaigns?